When applying for jobs there are various ways in which you can find out what types of jobs are available:
Your next step is to look at the advert to see what it requires and what the job can offer you.
Questions you should ask are:
If you are happy that the job is what you want, you need to decide what to do next or who to contact.
Some adverts will ask you to send in your CV with a covering letter, some will ask you to phone and speak to a certain person about the job, some may require you to fill in an application form.
Most adverts will explain what you need to do and it is important that you follow these instructions.
If the job you are applying for is with someone you already know, the instructions may be similar but a little less formal.